MESON Chess Problem Database

Problem Display
PID: 149185 (8/1prR4/1P1P4/QBN2kP1/1K3NpP/2BP1pP1/3pr3/4R3 w - - 0 1)

Fasano, Alessandro

Best Problems, 2010

8/1prR4/1P1P4/QBN2kP1/1K3NpP/2BP1pP1/3pr3/4R3

#2

14 + 7

15148 Sadier Collection 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Rf2
      • 2.Re5#
    • 1...Rg2
      • 2.Re5#
    • 1...Rh2
      • 2.Re5#
    • 1...Re4+
      • 2.dxe4#
    • 1...Re5
      • 2.Rxe5#
    • 1...Rxc5
      • 2.Rf7#
    • 1...Rc6
      • 2.Rf7#
    • 1...Rc8
      • 2.Rf7#
  • Tries
    • 1.Bc6?
      • threat
        • 2.Se4#
      • 1...Re4+
        • 2.Sxe4#
        • 2.Bxe4#
        • 2.dxe4#
      • 1...Rxc6
        • 2.Rf7#
      • 1...Re5
        • 2.Rxe5#
      • 1...Re6
        • 2.Scxe6#
      • 1...Re7
        • 2.Sce6#
      • 1...Re8
        • 2.Sce6#
      • 1...bxc6!
    • 1.Rxe2?
      • threat
        • 2.Re5#
      • 1...Rxc5
        • 2.Rf7#
      • 1...fxe2!
  • Keys
    • 1.Se4!
      • threat
        • 2.Bc6#
      • 1...Rxe4+
        • 2.dxe4#
      • 1...Rc4+
        • 2.Bxc4#
      • 1...Rxc3
        • 2.Bc4#
      • 1...Rc5
        • 2.Rf7#
      • 1...Rc6
        • 2.Bxc6#
        • 2.Rf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • R(b);OGATE::R1(A)
    • R(b);CHECK,OGATE::P(C),XR(b)
    • R(b);OGATE::R1(A),XR(b)
    • R(g);N_GUARD,XS(J)::R(N)
    • R(g);N_GUARD::R(N)
  • Tries
    • Try
      • B(I);
      • Threat
        • QAR(H)+S(J)
      • Vars
        • R(g);N_GUARD,XB(I)::R(N)
        • R(b);OGATE::R1(A),XR(b)
        • R(b);N_GUARD::QAR(H)+S(J),XR(b)
        • R(b);N_GUARD::QAR(H)+S(J)
      • Refutation
        • P(f);XB(I)
    • Try
      • R(A);XR(b)
      • Threat
        • R1(A)
      • Vars
        • R(g);N_GUARD,XS(J)::R(N)
      • Refutation
        • P(c);XR(A)
  • Actual
    • S(J);
    • Threat
      • QAR(H)+B(I)
    • Vars
      • R(b);CHECK,OGATE,XS(J)::P(C),XR(b)
      • R(g);CHECK,N_GUARD::QAR(H)+B(I),XR(g)
      • R(g);N_GUARD,XB(B)::QAR(H)+B(I)
      • R(g);N_GUARD::R(N)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).